linux-kernel - [PATCH] f2fs: compress: do cleanup in f2fs_truncate_partial

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Message-Id: <20231130092310.1297336-1-frank.li@vivo.com>
Date:   Thu, 30 Nov 2023 02:23:10 -0700
From:   Yangtao Li <frank.li@...o.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>
Cc:     Yangtao Li <frank.li@...o.com>,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: [PATCH] f2fs: compress: do cleanup in f2fs_truncate_partial_cluster()

Remove unnecessary code logic.

Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 fs/f2fs/compress.c | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 36e5dab6baae..de55c266509a 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1170,7 +1170,9 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock)
 	int log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
 	pgoff_t start_idx = from >> (PAGE_SHIFT + log_cluster_size) <<
 							log_cluster_size;
-	int err;
+	struct page **rpages = fsdata;
+	int cluster_size = F2FS_I(inode)->i_cluster_size;
+	int err, i;
 
 	err = f2fs_is_compressed_cluster(inode, start_idx);
 	if (err < 0)
@@ -1190,25 +1192,19 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock)
 	if (err <= 0)
 		return err;
 
-	if (err > 0) {
-		struct page **rpages = fsdata;
-		int cluster_size = F2FS_I(inode)->i_cluster_size;
-		int i;
-
-		for (i = cluster_size - 1; i >= 0; i--) {
-			loff_t start = rpages[i]->index << PAGE_SHIFT;
+	for (i = cluster_size - 1; i >= 0; i--) {
+		loff_t start = rpages[i]->index << PAGE_SHIFT;
 
-			if (from <= start) {
-				zero_user_segment(rpages[i], 0, PAGE_SIZE);
-			} else {
-				zero_user_segment(rpages[i], from - start,
-								PAGE_SIZE);
-				break;
-			}
+		if (from <= start) {
+			zero_user_segment(rpages[i], 0, PAGE_SIZE);
+		} else {
+			zero_user_segment(rpages[i], from - start,
+							PAGE_SIZE);
+			break;
 		}
-
-		f2fs_compress_write_end(inode, fsdata, start_idx, true);
 	}
+
+	f2fs_compress_write_end(inode, fsdata, start_idx, true);
 	return 0;
 }
 
-- 
2.39.0